Darrell Henry

Wavelength-Dispersive X-Ray Spectroscopy (WDS) part of Nanotechnology in STEM:Methods
Darrell Henry, Louisiana State University John Goodge, University of Minnesota-Duluth When an electron beam of sufficient energy interacts with a sample target it generates X-rays, as well as derivative electrons ...

Cathodoluminescence Theory part of Nanotechnology in STEM:Methods
Darrell Henry, Louisiana State University Bombarding the surface of a material with some incident radiation or particle may result in the emission of electromagnetic radiation beyond that produced by thermal black ...

Scanning Electron Microscopy - Cathodoluminescence (SEM-CL) part of Nanotechnology in STEM:Methods
Darrell Henry, Louisiana State University What is SEM-CL? A cathodoluminescence detector attached to a Scanning Electron Microscope (SEM), Field Emission Microscope (FEM) or an Electron Microprobe (EPMA) is ...

X-ray reflection in accordance with Bragg's Law part of Nanotechnology in STEM:Methods
Darrell Henry, Louisiana State University Nelson Eby, University of Massachusetts - Lowell John Goodge, University of Minnesota - Duluth David Mogk, Montana State University When a crystal is bombarded with X-rays ...

Cathodoluminescence Theory part of Integrating Research and Education:Geochemical Instrumentation and Analysis
Darrell Henry, Louisiana State University Bombarding the surface of a material with some incident radiation or particle may result in the emission of electromagnetic radiation beyond that produced by thermal black ...

Optical Cathodoluminesence (Optical-CL) part of Integrating Research and Education:Geochemical Instrumentation and Analysis
Darrell Henry, Louisiana State University What is Optical-CL? Optical cathodoluminescence (optical-CL) permits optical examination or imaging of a sample through the attachment of an evacuated CL-stage to an ...

X-ray reflection in accordance with Bragg's Law part of Integrating Research and Education:Geochemical Instrumentation and Analysis
Darrell Henry, Louisiana State University Nelson Eby, University of Massachusetts - Lowell John Goodge, University of Minnesota - Duluth David Mogk, Montana State University When a crystal is bombarded with X-rays ...

Scanning Electron Microscopy - Cathodoluminescence (SEM-CL) part of Integrating Research and Education:Geochemical Instrumentation and Analysis
Darrell Henry, Louisiana State University What is SEM-CL? A cathodoluminescence detector attached to a Scanning Electron Microscope (SEM), Field Emission Microscope (FEM) or an Electron Microprobe (EPMA) is ...

Generation of Characteristic X-Rays part of Integrating Research and Education:Geochemical Instrumentation and Analysis
Darrell Henry, Louisiana State University Characteristic X-rays are generated when an energetic beam of electrons interacts with the inner shell electrons by inelastic scattering with enough energy to excite inner ...

Wavelength-Dispersive X-Ray Spectroscopy (WDS) part of Integrating Research and Education:Geochemical Instrumentation and Analysis
Darrell Henry, Louisiana State University John Goodge, University of Minnesota-Duluth When an electron beam of sufficient energy interacts with a sample target it generates X-rays, as well as derivative electrons ...

Electron-Sample Interactions part of Integrating Research and Education:Geochemical Instrumentation and Analysis
Darrell Henry, Louisiana State University Electrons accelerated onto a material result in a number of interactions with the atoms of the target sample. Accelerated electrons can pass through the sample without ...